me on," said I.

"Keep down that hollow," said Henry, "and then they won't see you till
you get close to them."

The hollow was a kind of ravine very wide and shallow; it ran obliquely
toward the buffalo, and we rode at a canter along the bottom until it
became too shallow, when we bent close to our horses' necks, and then
finding that it could no longer conceal us, came out of it and rode
directly toward the herd. It was within gunshot; before its outskirts,
numerous grizzly old bulls were scattered, holding guard over their
females. They glared at us in anger and astonishment, walked toward us a
few yards, and then turning slowly round retreated at a trot which
afterward broke into a clumsy gallop. In an instant the main body caught
the alarm. The buffalo began to crowd away from the point toward which
we were approaching, and a gap was opened in the side of the herd. We
entered it, still restraining our excited horses. Every instant the
tumult was thickening. The buffalo, pressing together in large bodies,
crowded away from us on every hand. In front and on either side we could
see dark columns and masses, half hidden by clouds of dust, rushing
along in terror and confusion, and hear the tramp and clattering of ten
thousand hoofs. That countless multitude of powerful brutes, ignorant of
their own strength, were flying in a panic from the approach of two
feeble horsemen. To remain quiet longer was impossible.

"Take that band on the left," said Shaw; "I'll take these in front."

He sprang off, and I saw no more of him. A heavy Indian whip was
fastened by a band to my wrist; I swung it into the air and lashed my
horse's flank with all the strength of my arm. Away she darted,
stretching close to the ground. I could see nothing but a cloud of dust
before me, but I knew that it concealed a band of many hundreds of
buffalo. In a moment I was in the midst of the cloud, half suffocated by
the dust and stunned by the trampling of the flying herd; but I was
drunk with the chase and cared for nothing but the buffalo. Very soon a
long dark mass became visible, looming through the dust; then I could
distinguish each bulky carcass, the hoofs flying out beneath, the short
tails held rigidly erect. In a moment I was so close that I could have
touched them with my gun.

Suddenly, to my utter amazement, the hoofs were jerked upward, the tails
flourished in the air, and amid a cloud of dust the buffalo seemed to
sink into the eart